Note: Welcome to our third annual Cookie Month! Every weekday in December we're going to be sharing a cookie recipe with all of you, just in time for the holidays. So let's get those ovens preheated and get baking!

[Photograph: Maren Caruso]

Get the Recipe

Imagine if your favorite peanut butter cups had an added layer of peanutty shortbread on the bottom. Well, that's exactly what these Peanut Butter and Chocolate Shortbread Bars from Fine Cooking Cookies are all about.

They begin with a buttery, crumbly shortbread studded with roughly chopped salty peanuts. Once the shortbread cools, it's spread with a layer of salty-sweet peanut butter mousse and finally topped with a glossy coating of chocolate ganache. These bars are part candy, part cookie—when cut into tiny squares, they bring to mind fun-size candy bars.